GV300CAU
Series User Manual
3. Interface Definition
The
GV300CAU
has a 16-pin interface connector which contains the connections for power, I/
O, RS232, MIC, etc. The sequence and definition of the 16-pin connector are shown in the
following figure:
Figure 3.
The 16-pin Connector on the
GV300CAU
Series Table 6.
Description of 16-pin Connections
Pin No. Pin Name
Function Description
1
MICP
MIC positive input
2
MICN
MIC negative input
3
IGN
Ignition detection input, positive trigger
4
RXD
The RXD_RS232
5
TXD
The TXD_RS232
6
GND
Power and digital ground
7
ADIN3/OUT3
One special I/O can be configured as a 0-32V analog input or an
open drain output with 150 mA max drive current
8
OUT2
Open drain output2, 150mA max drive current
9
SPKN
Speaker negative output
10
SPKP
Speaker positive output
11
PWR
External DC power input, 8-32V
12
IN2
Digital input2, negative trigger
13
IN1
Digital input1, negative trigger
14
OUT1
Open drain output1, 150mA max drive current, with latch circuit
15
ADIN1/IN3
Analog input1 (0-32V) or digital input 3, negative trigger
16
ADIN2
Analog input2 (0-32V)
QSZTRACGV300CUM0101
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